can i use this sub for my open baffle?

[ishiru]

hello there..

recently i'm planning to make a 4 way open baffle (i a few speakers in different size )

but i want to go as low as i can.i have a pcs car subwoofer kicker ES124.spec attached

can i use this sub?.i'm planning to cut the freq at 100Hz.

-add-

i'm planning to use U frame for the sub.applicable?.

thanks!

 

[Inductor]

It's not a good idea.
That product (Kicker ES124) is better used in a sealed or quarter-wave/TL type to take full advantage of it's parameters.

 

[ishiru]

ah..too bad i couldn't use this..any driver recommendation for below 100Hz?..my room is small so 12" preffered

thanks

 

[Inductor]

Some links:
Component Speakers | TokoSpeaker, Toko Speaker, Car Audio, Audio Mobil, Speaker, Tweeter, Midrange, Subwoofer, Capacitor, Resistor, Inductor, Audio
Essential Audio - Loudspeaker Kits, Hi-Fi Loudspeakers, Guitar, Bass & PA Loudspeakers! Eminence, Celestion, Jensen, Scan Speak, Vifa, Peerless, SB Acoustics, Fountek
Speakerbug, Accuton, Audio Technology,
Drivers (OB)
1. AE Dipole12 - Qtsb 0.87 - Fsb 20.8 Hz
AE Speakers --- Superb Quality, Unforgettable Performance, Definitely.
AE Speakers Dipole 12 woofers - SALE PENDING

2. Eminence Alpha-12A - Qtsb 1.08 - Fsb 35.5 Hz
http://www.eminence.com/pdf/Alpha_12A.pdf
Eminence Alpha-12A 12" Guitar/PA Driver | 290-405

3. FOUNTEK FW300 alu (not fw300b) - Qtsb 0.88 - Fsb 33.9 Hz
https://www.intertechnik.de/Shop/Lautsprecher/Fountek/_FW300B_1768,de,6981,125579
Strassacker: Speaker Building, Components
?fountek?FW300/12?/???/???/?? ????_???(???)_???

 

[ishiru]

wow.they priced pretty high! (x_x)

 

[Inductor]

Also well known - Selenium/JBL (Brasil)
SELENIUM 12PW3 - Qtsb 0.92 - Fsb 37.5 Hz
*12PW3-SLF meaning "Black and no lettering on dust cover"
no longer avail. in PE
http://www.selenium.com.br/site/assets/produtosfinal/50_pdfManual.pdf
Selenium 12PW3-SLF 12" Driver | 264-334

 

[Inductor]

If you have access to car drivers:
Pioneer TS-SW3001S2 - Qtsb 0.90 - Fsb 35.4 Hz
TS-SW3001S2|S4 - 12" Shallow Mount Subwoofer with 1500 Watts Max. Power | Pioneer Electronics USA
Amazon.com: Pioneer TS-SW3001S2 12-Inch Shallow Subwoofer with 1500 Watts Max Power: Car Electronics

Audio Nirvana 'Super 12 Alnico' ($799/pr plus shipping) - Qtsb 0.91 - Fsb 26.0 Hz
http://www.commonsenseaudio.com/an12alnicospecs.jpg
http://www.commonsenseaudio.com/affordableaudio12.pdf
Audio Nirvana Full-Range Speakers For Sale. High Efficiency, DIY, Single Driver, Monitor Speakers with no crossover.

Fane Sovereign 12-200LT - Qtsb 0.83 - Fsb 39.8 Hz (€64,00 euros)
http://www.fane-acoustics.com/downloads/Fane Sovereign 12200LT DS030513.pdf
Fane Sovereign 12-200LT - Thomann UK

And this beautiful vintage drivers (if u can find them on ebay)
EV electro-voice SP12C - Qtsb 0.95 - Fsb 31.9 Hz
http://www.electrovoice.com/downloadfile.php?i=971239
http://www.electrovoice.com/downloadfile.php?i=971230
SP12C ELECTRO VOICE HiFi-Do McIntosh/JBL/audio-technica/Jeff Rowland/Accuphase 13-43258-88587-00
EV electro-voice SP12C 12" drivers - Pair in as new condition - matching DCR Photo #530655 - US Audio Mart (sold)

 

[ishiru]

*gulp*
no cheaper way?
my friend has a celestion AP12.useable or not?..

those subs has a high qts.i thought for an OB, low qts was preffered.so im wrong?..

 

[BeauB]

The Eminence Alpha-12A 12" Guitar/PA Driver is $60.

 

[ishiru]

The Eminence Alpha-12A 12" Guitar/PA Driver is $60.

there's Beta 12A here but..so expensive!.touched $150 (x_x)

 

[harvylogan]

ishiru,

How many of the Kicker 124 ES do you have? And what other drivers do you have and/or are considering for a 4 way?

Matthew

 

[Inductor]

those subs has a high qts.i thought for an OB, low qts was preffered.so im wrong?..

I'm no expert (OB) but, to me, with no enclosure surrounding the driver it's like the Qms it's all that is grabbing the driver diaphragm at LF (plus amp/electrical). (Please feel free to correct me...)
It can be any you want...

Qtsb > 0.68. (Qts > 0.544)
(installed in speaker/baffle)
Qtsb = Qmsb*qesb/(Qmsb+qesb)
Qmsb = Qms*Fs/Fsb
Qesb = 2*Pi*Fsb*(Re+Rg+Rf)*Mmsb/B.L2
Fsb = 1/(2*Pi*√(Cms*Mmsb)) (lower than Fs in baffle)
Rg (R/amp internal)
Rf (0 for passive components/not used)

 

[Moondog55]

If you have a pair of the Kicker Why not use them in a box as they are designed to and cross to OB midbass at or around 120??
That it what I will be doing when I get around to my OB system as my woofers do not have enough X-Max to use OB below 80Hz

 

[Bob Richards]

I have the Peerless XXLS 12 inch drivers in closed boxes, driven with active EQ and a 4 pole active crossover, making them acoustically flat down to 20HZ. I run them up to 100HZ were they crossover to my open baffle satalites.

These may be a best buy at around $200 each. Linkwitz used these (the 10 inch version I think) in his Orion when it first came out, then he changed to the much fancier looking and much more expensive Seas drivers. When you price a speaker between $5K and $17K, it better be very amazing looking. I'm not sure there is much difference sound wise.

 

[BeauB]

The Peerless SLS 830669 - 12" Woofer is used in an OB application in the Manzanita.

It sells for less than $100 each.

 

[ishiru]

i only have 1 kicker (pulled from my car ).that's why i'm asking here if i can use this on an open baffle or not .this kicker needs pretty big enclosure and i have no enough room if i use enclosure


my budget also in tight position .currently i have a pair of taiwan driver (no brand, 5.5", have a phase plug, 5 Ohm DC resistance) and a 6" driver pulled from panasonic hifi (the cone is pretty stiff, rubber surround, around 2" vc, and 7Ohm DC resistance)

i'm searching for affordable driver for the lows .my friend offered me a pair of Celestion AP12 for $100.

now i have 2 choice.i bought local brand (ACR), or this NOS driver?

 

[Inductor]

BeauB,
Amazing comment because it's available locally from my post#4 link #AU (essentialaudio.com.au) for OP.
Actually it's in the top of list for OB, of more than a dozen 12" Peerless products.
And if it doesn't work or he doesn't like it, it's excellent for a different design ie., sealed or quarter wave.
Note that there are 2 versions both good and very much the same (Fs=28Hz vs. Fs=31Hz).
Peerless 830669 SLS 12" link and pdf

 

[Inductor]

ishiru,
Your driver should work fine. Your baffle will decide, but you will have to ask others.
I can just compare it with others manufacturers for their LF performance and options.
It's similar to the Peerless but with a heavy cone and 4 ohms.
http://manzanitaaudiosolutions.com/
http://www.diyaudio.com/forums/multi-way/110583-fast-fun-inexpensive-ob-project.html

 

[BeauB]

BeauB,
Amazing comment because it's available locally from my post#4 link #AU (essentialaudio.com.au) for OP.
Actually it's in the top of list for OB, of more than a dozen 12" Peerless products.
And if it doesn't work or he doesn't like it, it's excellent for a different design ie., sealed or quarter wave.
Note that there are 2 versions both good and very much the same (Fs=28Hz vs. Fs=31Hz).
Peerless 830669 SLS 12" link and pdf

I have just started building the Manzanita (at least I've ordered the parts). Although not yet, I will shortly have some experience with the Peerless in OB, and I'll be happy to share my (very novice) experiences.

 

[DeonC]

It's not a good idea.
That product (Kicker ES124) is better used in a sealed or quarter-wave/TL type to take full advantage of it's parameters.

I am actually going to disagree here. With a Qt of .55 it should work well enough on an open baffle. If you read what Lukasz Fikus says, a driver of a Qt as low a 0.3 will work as a sub. It will not go low as easily as drivers with higher Qt specs, but I still think it will work well enough. Try it in an H-frame. I say go for it.

Deon